About the missing nail , I remark that it's not a scare, it looks covered by make-up . Possible that Lee never lost a nail. May be it only a detail sent by Sergio, meaning:" this guy looks like Douglas Mortimer, but he is different ". It's very subtle because Sergio made much efforts to show us the same man: black suits, pipe, moustache, gun weared in the middle of the belly. Even his black and nervous horse is the same in GBU and FAFDM